GRK RSS 5/16 In. x 3-1/8 In. Black Star Drive Washer Head Structure Screw (25 Ct.) Aqua Lock replaceable seat and stem

replaceable seat and stem

and CPVC pipe and fittings

Excellent adhesion to many substrates including aluminum

non-stick blades provide enhanced cutting power due to their increased surface area and weight

Fitting can be rotated on pipe after installation making it easier to work in tight spaces

GRK RSS 5/16 In. x 3-1/8 In. Black Star Drive Washer Head Structure Screw (25 Ct.) Aqua Lock replaceable seat and stemGRK RSS Black Structural Screw is a structural fastener designed for ease of installation and the strongest of connections while providing a bold finish. With proprietary features like the Zip Tip, and W Cut thread, RSS fasteners drive into most woods without the need for pre drilling. The specially engineered design results in a low effort installation, especially compared to conventional lag screws. RSS Rugged Structural Screws have a Climatek